Vivian (ビビアン, Bibian) the daughter of the owner of Leo's favorite Diner, where she works as a Waitress.
A young woman presumably Leo's age, with short blonde hair & blue eyes. She typically wears a white short-slevve shirt over blue jeans & a green apron with a red baseball cap worn backwards.
Described by Leo as being a 'busybody' in the anime, she seems very-down to earth & isn't above giving him a piece of her mind.
Like many residents of Jerusalem's Lot, she seems indifferent to the weirdness that surrounds her, though she may simply have chosen to ignore it.